Ring for the unwinding of yarn from yarn containers in cable-cord frames or other twisting or doubling frames



N -J. HYBLACKBURN ETAL 1,782,772 II FOR THE UNWINDING OF YARN FROM YARN CONTAINERS IN CABLE TWISTING OR DOUBLING FRAMES Nov. 8. 1929 CORD FRAMES OR OTHER Filed Jw Mmw" MM! 5y array/V57 mm 6% 2 through which passes the yarn to be treated or twisted. Said ring however is fixed incommences. The traveller is carried round Patented Nov. 25, 1930 UNITED STATES- PATENT OFFICE.

JOHN HENRY BLACKBURN, OF PRESTON, AND WILLIAM EDWIN BANCROFT, OF

ACCRINGTON, ENGLAND, ASSIGNOR GRINGTON, ENGLAND ro HOWARD & BuLLoU'G'H' LIMITED, or AC- RING FOR THE UNWINDING OF. YARN FROM YARN CONTAIN BBS IN CABLE-C631) FRQMES OR OTHER TWISTIN G OR DOUBLING FRAMES I Application filed November 8, 1929, Serial No. 405,682, and in Great Britain December 12. 1928.

plicable to other types of twisting or doubling frames. I I

In all such frames it is usual for each yarn-container to rest upon a spindle mount, said spindle being driven by bands connecting the revolving tin roller with thewharve on said spindle ormount. r 1 About the yarn container named is, also situated the ring carrying the usual traveller position. It is very desirable in the manufacture of cable cord that the twist be of uniform char acter, and be produced in a positive manner or so that the twists shall commence in unalterable manner at a given point relatively to the yarn-container, for example, and not before. Such a provision tends to prevent that chafing of the yarn which occurs in those cases where a partial twisting of the yarnv ring which is fixed in position, we provide one which is revoluble; and free to run around the same is a'traveller through which. the yarn passes. That is to say said traveller operates merely or largely as an unwinding device for unwinding yarn from the container in a cable cord-makin frame. In this way the plied but untwisted yarn is capable of being supplied or brought to a particular position before the first twist of the same to a certain extent, but the drag exerted between it and the yarn passing therethrough operates to make it travel at a speed suitable for unwinding purposes referred to.

With reference to the accompanying drawings, Fig. 1 is a sectional elevation showing a yarn-container or bobbin and adjacent parts arranged according to a form of our invention. Fig. 2 shows on an enlarged Fig. 3 shows the same angles .to Fig. 2. p Fig. 4 is a plan view of the top of 2. Fig.6, on a similar scale to Figs. 2,3 and 4, shows a portion of Fig. 1 at and about the position of the ring and traveller thereon. Fig. 6 is a plan view of Fig. 1. Fig. 7 is a modification of the-lower part of said Fig.1. ais the yarn container. (the yarn thereon not being indicated) and b is .a ring about the upper part of the same contamer on which ring is a travellerc., .Yarn

indicated at d is shown passing through said traveller from the bobbin a to a point above. Saidlyarn originally consists of several plied but unt-Wisted strands. 5

The ring b,'according to our invention, is,

here attached to a tubular member 6 connect ed to a perforated base part h which is perforated. to receive the spindle m on a mount or boss is. i The tube eis thus arranged fast scale an-upper portion of said ig. 1, while-. portion but at right to the spindle, and moves with it. The tube e is also attached to a frame-like member '0, the upper extended part of which at 1" having a central vertical aperture therethrough, and side passages, guides or holes leadinginto the same. The manner in which they arn passes through said apertures determines the amount of drag desired. I

In Fig. 1 the yarn d is shown threaded out and in of these side passages, and then to a guide roller or rod 8 above. It will be seen that as the tube e and ring 6 are carried round by the spindle m, actual twistingtakes place between the upper part a" of the framing named, and a point; beyond the .rod 8, such as at a pair "or nip rollers t. Below the part '1'. through the traveller, and from the traveller to the bobbin, the yarn is in its untwisted state. On the other hand, said traveller is free to move on the ring according to the drag put upon it, and said traveller operates to unwind theyarn from the'con tainer. a, also there is not the tendency to partially twist the varn as between the traveller and said container, such as often occurs with the use of a fixed ring. In Fig. 7, the

tubular member 6 is attached to a base part h formed with an annular cavity at u in pulley-groove manner.

The tube and ring may thus be positively driven at a correctlytimed speed from an outside mechanism in connection with groove u by a band for the purpose. In which case the contact between it and mount k would be merely frictional.

We claim:

1. In cable cord frames and other like twisting or doubling frames, a revoluble ring, a movable traveller on said ring, a yarn-com tainer within said ring, from which yarn passes to and through said traveller, a mount about said yarn-container to which said ring is connected, a spindle passing through said yarn-container with which said mount is revolved, an extension of said mount, yarn guides in said extension through which yarn from the traveller and container passes, whereby a positive twist is put into the yarn between said guides and a determinable point beyond, and whereby the traveller named operates merely to unwind the yarn from the container aforesaid.

2. In cable cord frames and other like twisting or doubling frames, a revoluble ring, a movable traveller on said ring, a bobbin within said ring, from which yarn passes to and through said traveller, a mount about said bobbin to which said ring is connected, a spindle passing through said bobbin with which said mount is revolved, an extension of said mount, yarn guides in the form of apertures in said extension through which yarn from the traveller and bobbin passes,

whereby a positive twist is put into the yarn between said guides and nip rollers beyond, and whereby the traveller operates merely to unwind the yarn from the bobbin aforesaid.

JOHN HENRY BLACKBURN. \VILLIAM EDWIN BANCROFT. 

